Process of distillation of heavy oils.



J. ROSEN. PROCESS 0F DISTILLATION 0F HEAVY OILS. APPLlcATloN FILED JULY 9. |914.

L16,54. y Patented Nov. so, 1915.

Y To aiZZ 'whom z't may concern.

zen of France,

ter is divided into two or several JEAN ROSEN, 0F PARIS, FRANCE, ASSIGNOR TO SOCIT ANONYME DES COMBUSTIBLES INDUSTRIELS, 0F PARIS, FRANCE.

PROCESS 0F DISTILLATION OF HEAVY OILS.

Be it known that-1, JEAN RosEN, a citiresiding at 25 Rue Pigalle, Paris, France, have invented certain new and useful Improvements in Processes of Distillation of Heavy Oils, of which the following is a specifica-tion.

This invention relates to a process of distillation consisting'in using as carrier liquids a series of'products that are somewhat lighter than the material to be treated, the said products being preferably introduced in a cold liquid condition into a part only of the material to be distilled. t

According to the process of this invention each body of carrier liquid that is introduced into the raw material must have a boiling point that is 50 C. lower than the temperature the mass being distilled has at the moment of introduction of the carrier liquid. These carrier liquids are moreover supplied in a cold or unheated liquid condition to a part only of said mass. The latparts by partition walls provided in the still or by dividing the mass over several receivers that communicate with each other. The carrier liqluids are supplied to one of these parts on 'llhe selection of the carrier will depend on the temperature at which the raw material distils, 2'. e., on the nature of the medium into which the carrier is introduced. The higher the temperature of distillation of the mass'the heavier the carrier liquid will have to be.

In view of the fact that the temperature of the material to be distilled constantly changes it is not sulficient to introduce one carrier only, a series of these carriers must be used, the heaviest of which is supplied when the temperature of the mass to be dis.- tilled has attained its maximum. This series of carriers can be introduced into the same still or several receivers may be used, each of which contains the raw material at a definite temperature and said material being progressively passed from one receiver to the following as the temperature increases. To each of these 'receivers a definite carrier is supplied according to the temperature of the receiver, so that the execution of the distillation operation becomes automatic. The various carriers may 'howf ever be introduced into the same receiver Specification of Letters Patenti Applieation mea July 9, 1914. Yserial No. 850,028.

or still in which the mass to be distilled is kept during the whole distillation operation. The introduction of these carriers is made according to the temperature of the mass to be distilled with a constant difference of l50 C. between the temperature of the mass and the boiling point of the carrier.

Reference is now to be had to the accom panying drawings illustrating one form of iappiratus in which the process may be prac- Let petroleum residue or petroleum tar (which is the material remaining after driving olf kerosene from petroleum) be the raw material. This raw material is introduced into a main reservoir 1 through an opening normally covered by a filler cap 2. The reservoir or still is heated by means of a coil l through which a heating medium like steam passes. A partition 3 spaced from the top and bottom communicating compartments 4 and 5 for the raw material. The raw material is heated in reservoir l and the distillate passes out through pipe 6 which has a cut oil1 valve 6 therein. When the raw material reaches atemperature say of 130 C. volatile oil of the petroleum family which volatilizes at 80 C. 1s supplied from a tank 7 through a pipe 8 and a pipe 9 to the compartment et in a cold or unheated condition. When this carrier oil strikes the heated material, explosions occur, agitating the rather thick mass, decomposing the oil so that it volatilizes and serves as a carrier for the volatile product of the mass. At the times the mass is at temperatures of approximately 170 C., 230 C. and 280 C. respectively, cold or unheated oils of the petroleum family which volatilize at respectively 120 C 180 C. and 230 C.

, are supplied frorii tanks 10, l1 and vl2 through pipes 13, 14 and 15 to pipe 9 and then to the raw material, the explosions occurring when the oils strike the heated mass and the oil volatilizing by the heat of the mass so as to serve as carriers for the distillate passing olf at 120 C., 180 C. and 230 C. While the explosions occur in compartment 4, yet during operation, material from compartment 5 Hows and is drawn into compartment 4 so as to be treated by the oils supplied thereto and exploding therein.

Cut olf valve 16 may be provided in pipe 9 intermediate the tank 7 and main reser- Voir and a cut off Valve 17 may be provided in each pipe 8, 13, 14 and 15 so that the suply of carrier 'oil to reservoir 1 may be controlled. Also each tank 7 10, 11 and 12 may have a filler opening covered by a plug 18 and in addition each have an inlet pipe 19. through which the oils under pressure are supplied to the tanks and through the Ypipes vaporized and serve as carriers for'the distillates.

2. The process, of distilling a mass of hydrocarbons which consists, in constantly increasing the temperature of the mass and in introducing thereinto, in successive order, lighter hydrocarbons in liquid condition, of the same chemical family, and ot' graduallyincreasing boiling points, theboiiing points of the lighter hydrocarbons always being between 30 and 150O C. lower: than the temperature of the mass being distilled at the time of their introduction into the mass,

whereby such lighter hydrocarbons are va-y porized and serve as carriers for the distillates.

In testimony whereof I aix my signature in presence of two witnesses.

JEAN ROSEN.

Witnesses CHAs. P. PREssLY, FELIX WELCHER. 

